Electrically controlled additive lamp housing for optical printing
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United States of America Patent
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-
Apr 19, 1983
Grant Date -
N/A
app pub date -
May 26, 1981
filing date -
Jun 3, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
First, second and third dichroic filters are positioned at corresponding ones of first, second and third light sources for deriving red, green and blue beams, respectively, from the light sources. A beam guide member has first, second and third branched bundles and a main bundle composed of the first, second and third branched bundles. Each branched bundle has an end surface at which a corresponding one of the beams derived from the dichroic filters is provided. The main bundle has an end surface for emitting the beams. A light quantity control circuit controls the quantities of light of the light sources.
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